GNSS receiver cascade type vector tracking method and vector tracking loop

The invention discloses a cascaded vector tracking method and a vector tracking loop for a GNSS (Global Navigation Satellite System) receiver. The vector tracking method comprises the following steps: performing Kalman filtering processing based on maximum correlation entropy on a baseband signal to obtain a carrier frequency error and a code phase error; and finally, obtaining the position, speed and time information of the GNSS receiver and the carrier thereof. The vector tracking loop comprises a pre-filter which is used for using an average carrier phase error and an average code phase error output by a carrier/code discriminator as measurement information input of filtering, performing Kalman filtering processing based on maximum correlation entropy on a baseband signal, and the like. And finally obtaining the position, speed and time information of the GNSS receiver and the carrier thereof. According to the vector tracking method and the vector tracking loop, the GNSS receiver can realize a better posit